Rio Grande River - Tributaries

Tributaries

The largest tributary of the Rio Grande by discharge is the Rio Conchos, which contributes almost twice as much water as any other. In terms of drainage basin size the Pecos River is the largest.

Tributary Average discharge Drainage basin
cu ft/s m3/s sq mi km2
San Juan River 368 10 12,950 33,500
Rio Alamo 130 3.68 1,675 4,340
Rio Salado 354 10.0 23,323 60,400
Rio San Rodrigo 130 3.68 1,050 2,720
Devils River 362 10.3 137 355
Pecos River 265 7.50 44,402 115,000
Rio Conchos 848 24.0 26,400 68,400
Rio Puerco 39.5 1.1 7,350 19,000
Jemez River 59.5 1.68 1,038 2,688
Santa Fe River 10.9 0.31 231 598.3
Rio Chama 571 16.2 3,144 8,143
Conejos River 176 4.98 887 2,297

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